1800702920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{569}}^1\times {\mathrm{1297}}^1$

素因数の和:1938

約数の個数: 64

約数和(自身を含む): 4128418800

約数和(自身を除く): 2327715880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 569, 610, 1138, 1220, 1297, 2276, 2440, 2594, 2845, 4552, 5188, 5690, 6485, 10376, 11380, 12970, 22760, 25940, 34709, 51880, 69418, 79117, 138836, 158234, 173545, 277672, 316468, 347090, 395585, 632936, 694180, 737993, 791170, 1388360, 1475986, 1582340, 2951972, 3164680, 3689965, 5903944, 7379930, 14759860, 29519720, 45017573, 90035146, 180070292, 225087865, 360140584, 450175730, 900351460, 1800702920]

約数ペア:

[(1, 1800702920), (2, 900351460), (4, 450175730), (5, 360140584), (8, 225087865), (10, 180070292), (20, 90035146), (40, 45017573), (61, 29519720), (122, 14759860), (244, 7379930), (305, 5903944), (488, 3689965), (569, 3164680), (610, 2951972), (1138, 1582340), (1220, 1475986), (1297, 1388360), (2276, 791170), (2440, 737993), (2594, 694180), (2845, 632936), (4552, 395585), (5188, 347090), (5690, 316468), (6485, 277672), (10376, 173545), (11380, 158234), (12970, 138836), (22760, 79117), (25940, 69418), (34709, 51880)]